<?php
$to = 'info@food-is-good.by';
$name = $_POST['name'];
$phone = $_POST['phone'];
$message = $_POST['message'];
$subject = $_POST['reason'];

$body =  '<div>Клиент:'.$name.'</div><div>Сообщение:'.$message.'</div><div>Телефон:'.$phone.'</div>';

$headers = 'From: info@food-is-good.by' . "\r\n" .
    'Reply-To: info@food-is-good.by' . "\r\n" .
    'Content-type: text/html; charset=iso-8859-1' . "\r\n" .
    'X-Mailer: PHP/' . phpversion();

echo "OK";

mail($to, $subject, $body, $headers);
?> 